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"""
Test more expression command sequences with objective-c.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class FoundationTestCaseNSError(TestBase):
@expectedFailureAll(archs=["i[3-6]86"], bugnumber="<rdar://problem/28814052>")
def test_runtime_types(self):
"""Test commands that require runtime types"""
self.build()
self.target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
self, "// Break here for NSString tests", lldb.SBFileSpec("main.m", False)
)
# Test_NSString:
self.runCmd("thread backtrace")
self.expect("expression [str length]", patterns=[r"\(NSUInteger\) \$.* ="])
self.expect("expression str.length")
self.expect('expression str = [NSString stringWithCString: "new"]')
self.expect(
'po [NSError errorWithDomain:@"Hello" code:35 userInfo:@{@"NSDescription" : @"be completed."}]',
substrs=["Error Domain=Hello", "Code=35", "be completed."],
)
self.runCmd("process continue")
@expectedFailureAll(archs=["i[3-6]86"], bugnumber="<rdar://problem/28814052>")
def test_NSError_p(self):
"""Test that p of the result of an unknown method does require a cast."""
self.build()
self.target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
self, "// Set break point at this line", lldb.SBFileSpec("main.m", False)
)
self.expect(
"expression [NSError thisMethodIsntImplemented:0]",
error=True,
patterns=[
"no known method",
"cast the message send to the method's return type",
],
)
self.runCmd("process continue")
@skipIfOutOfTreeDebugserver
def test_runtime_types_efficient_memreads(self):
# Test that we use an efficient reading of memory when reading
# Objective-C method descriptions.
logfile = os.path.join(self.getBuildDir(), "log.txt")
self.runCmd(f"log enable -f {logfile} gdb-remote packets process")
self.addTearDownHook(lambda: self.runCmd("log disable gdb-remote packets"))
self.build()
self.target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
self, "// Break here for NSString tests", lldb.SBFileSpec("main.m", False)
)
self.runCmd(f"proc plugin packet send StartTesting", check=False)
self.expect('expression str = [NSString stringWithCString: "new"]')
self.runCmd(f"proc plugin packet send EndTesting", check=False)
self.assertTrue(os.path.exists(logfile))
log_text = open(logfile).read()
log_text = log_text.split("StartTesting", 1)[-1].split("EndTesting", 1)[0]
# This test is only checking that the packet it used at all (and that
# no errors are produced). It doesn't check that the packet is being
# used to solve a problem in an optimal way.
self.assertIn("MultiMemRead:", log_text)
self.assertNotIn("MultiMemRead error", log_text)
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